HIV Type 1 Subtype A1 Dominates in Armenia

Author(s): Vita Laga , Alexander Vasilyev , Ilya Lapovok , Samvel Grigoryan , Arshak Papoyan , Nataliya Glushchenko , Elena Kazennova , Marina Bobkova .

Journal Name: Current HIV Research

Volume 13 , Issue 3 , 2015

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Abstract:

Objective: There is scarce information about the molecular epidemiology of HIV-infection in Armenia (former USSR). The objective of this work was to estimate the distribution of HIV-1 subtypes in this country and get any information about HIV drug resistance in naÏve patients.

Design: A joint study involving 78 patients was carried out in Yerevan, Armenia and Moscow, Russia in 2009-2013. The cohort studies included mostly IDUs (28.2%) and heterosexuals (69.2%).

Results: The phylogenetic analyses based on population sequencing of partial pol gene found subtype A1 being the most prevalent (92.3%), followed by subtype B (3.9%). The HIV-1 tropism inferred from env V3-loop sequences was determined in 27 samples, among them R5-tropic viruses were found in 13 (48.1%) patients and X4- variants – in 14 (51.9%) patients. The prevalence of drug resistance in naïve patients was low (1.5%) with the only one mutation K219Q found.

Conclusion: The composition and distribution of HIV-1 genetic variants in Armenia are evidently influenced by the Russian and other FSU countries epidemic, due to the significant volume of Armenian migrant/re-emigrant flows. Continued surveillance of HIV-1 circulating subtypes and drug resistance in Armenia is important for the proper management of HIV infection in this country.

Keywords: Armenia, drug resistance, epidemics, HIV-1, prevalence, phylogeny, subtypes.

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Article Details

VOLUME: 13
ISSUE: 3
Year: 2015
Page: [219 - 225]
Pages: 7
DOI: 10.2174/1570162X13666150407142834
Price: $58

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